1. Department of Otolaryngology-Head and Neck Surgery, Chinese PLA General Hospital, Beijing, China;
2. Department of Otolaryngology, the 175th Hospital of PLA, South-East Hospital Affiliated to Xiamen University, Zhangzhou, China
3. Department of Otolaryngology-Head and Neck Surgery, Fujian Provincial Hospital, Fuzhou, China;
4. Department of Otolaryngology-Head and Neck Surgery, Chinese PLA General Hospital Hainan Branch, Sanya, China;